Spray it on the plants thoroughly about once a week. The AMX HEPA Filter Box is a great way to purify the air from various forms of germs and bacteria when using. a mildew-resistant phlox, and Perennial Plant of the Year in 2002. Ionizer / Ozone generators. Resistance within a wide temperature range is therefore desirable for cucumber production. SusaZoom/Shutterstock. Use a new piece of paper towel on each leaf if possible. Leak some output to kill airborne pathogens and spores. *Corresponding author: sara. Benefits of using an ionizer. Next, be sure to use mold-resistant paint, as this can help avoid mold developing in the future. And it’s the top type of filter you’ll find in the best air cleaner for allergies. Hop powdery mildew (caused by Podosphaera macularis) is an important disease of hop worldwide (. Give the plants plenty of sun, as too much shade seems to make. The Winix 5500-2 is an exceptional air purifier with a True HEPA filter and is one of the most popular Winix products ever. These apparatuses produce an electric field by charging an insulated conductor wire (ICW). Leaves touching other leaves are more likely to spread powdery mildew to each. This growth rapidly becomes denser, and may cover the entire leaf giving it a gray to white appearance. The Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer is a great option for those who are looking for an air purifier that not only helps with powdery mildew but also eliminates germs, mold, smoke, pet dander, etc. Powdery mildew is the common name for the disease and symptoms caused by a closely related group of fungi. Application: Make a 0. Best Air Purifier for Powdery Mildew by greencarpetgrowing | Dec 17, 2019 | Air Control, Cannabis Education, Growing Cannabis, Home Grow Tips The best Air. Changing the cultural environment is the most harmless way to treat powdery mildew, but it does require a few changes to your lawn care practices, including: Trim or prune plants that are blocking sunlight from reaching your grass. 1 microns or greater in size, according to 3rd party lab testing. Carbon Filters & Odor Control /. It utilizes a three-stage cleaning system that functions on several different modes, including sleep. Be sure to meticulously maintain your filtration systems. Even if the mildew seems to be gone, it is probably still growing beneath. 3 micrometers or larger. Powdery mildew starts as discrete, circular powdery white spots on leaves. Make a neem oil spray by combining 2 teaspoons neem oil, 1 teaspoon liquid dish soap or Castile soap, and 1 quart (1 l) of water. Vornado Air Purifier for Mold – Most User-Friendly. White to gray, powdery spots, blotches or felt-like mats form on leaves, stems and buds of infected plants. It has not 1 but 3 dedicated mold-eliminating filters and removes 99. Powdery mildew, one of the most easily recognized of all plant diseases, is characterized by the presence of a whitish, fungal growth on the surfaces of leaves, stems, and sometimes petals. the air cleaner can filter and the larger the area it can serve. S, a HEPA filter has to be able to remove up to 99. 3 micron particles. Mold. Apply every week until you detect no more symptoms, then every two weeks to avoid the mildew's return. From $140. 2, Wolf J. 1. 4 tablespoons apple cider vinegar. Neem Oil Soak for Powdery Mildew. Its ion output is 20,000,000 positive and negative ions. Powdery mildew is a common fungal disease that effects many different plants. Newer Posts. That disqualifies most air purification systems that rely on filtration since most, if not all, spores will pass through the filter. The benefits of using baking soda to treat powdery mildew include:Downy mildew is a type of mildew that starts off as a bright yellowish color that slowly browns over time. What is powdery mildew? Powdery mildew is a parasitic fungus known as white mold, oidium, or PM. ), derived from synthetic hexaploid. Don’t be too rough—you do not want to injure the plant by opening up tears in the leaves. Here are the best ways to kill powdery mildew on cannabis plants during flowering, and to control it so it doesn’t return. The Airo Home Hobby will clean the air of all kinds of VOC’s, fungal diseases like powdery mildew, gray mold/botrytis, downy mildew, and blight. The best air purifiers for mold use high-efficiency particulate air ( HEPA) filtration to remove mold spores, pollutants, and allergens for cleaner indoor air. Gutters and downspouts should escort water away from the house so it doesn’t accumulate near your foundation and end up seeping in your crawl space. NASA-based photocatalytic oxidation filter that uses the combo of UV light ith photocatalyst to create mold-killing ions. 25 proposed a new method based on image processing and artificial neural network to automatically detect powdery mildew spores. Inspect the book pages, looking for spots or residue that may be mildew. “It harms the plants. Mould-and-mildew-resistant paint is designed for damp conditions, such as Johnstone's bathroom paint from Amazon. These sturdily designed filters offer 3 layers of protection with a high-efficiency purification rating of up to 99%. Powdery mildew can lead to bud rot which is the weird colored buds. GrowBright's high-efficiency inline HEPA filters purify and treat incoming air for grow rooms and tents. How it works: The mixture of water with baking soda creates a slight alkaline reaction, which is effective against the fungi. The plants are grown in a tent with a fan blowing inside as well as an exhaust fan ect. 5. Because powdery mildew and other infections such as fungal spores spread easily via airflow and ventilation, UV air-filters can be an extremely helpful tool to prevent the spread of these diseases. 95. ohhhh one more question, i have a HEPA air filter thing that im running into my intake fan (it helps bring down the humidity, at least keep it in check. Potassium bicarbonate fungicide is another effective treatment. A common pest in cannabis cultivation, it attacks the aerial parts of the plant. Winix 5500-2 – Best Basement Air Filter and Compact Design. “They do not remove gases and odors. "The term 'mildew' basically refers to mold growth that’s light in color and powdery in texture," Rubino says. 15" x 25" x 20" V-Bank HEPA. Both mold and mildew are fungi, but mildew has a different growth pattern than mold. Hepa filter. We are a revolutionary leap in active air and surface purification that is safe to use 24/7 in occupied areas. Brush the mildew away with a soft-bristled brush, brushing vertically to avoid sending particles toward the. The higher the humidity the less adsorption the carbon filter will be. Sulfur is another organic compound that can be highly effective against powdery mildew on pumpkins if used before the infection becomes too established. . However, free water, for example from rain, inhibits germination. It's a good control for mild to moderate powdery mildew infections. Powdery mildew is a fungal disease that affects a wide variety of plants. One of the most chemical-free and cost-effective approaches for the management of wheat powdery mildew is the exploitation of resistant cultivars. I had a boss who brought his dog into the flower room and sure as shit 7 days later we had mites and PM on the same path where that little bastard wandered through. A HEPA filter such as the 6″ Phat HEPA filter ($130) provides maximum filtration. Vinegar: Vinegar is rich in acetic acid that’s harmful to the fungus. In fact, free water can kill the spores of most types of fungi that cause powdery mildew, and inhibit the growth of the mycelia. Remove or thin out thick plants that contribute to poor air circulation around the infected areas. Water from below – Use drip lines or hoses to water your plants. Baking Soda. Get AiroClean420 Pricing. , to prevent any more water from entering and causing mold problems. Powdery mildew is particularly common in cannabis plants because unlike ordinary mildew, powdery mildew thrives in warm and dry environments like greenhouses and grow rooms. Let the mildew dry out. This both treats existing powdery mildew and protects the plant against further infection. Pro tip: if the humidity of the growing environment is below 55° RH, it is most unlikely powdery mildew problems will arise. Most air cleaner packaging will tell you the largest size area or room it should be used in. Their common symptom is a grayish-white, powdery mat visible on the surface of leaves, stems, and flower petals. Make a house rule that forbids food in bedrooms, so your kids don’t end up attracting pests, getting sick, or creating a very stinky kid cave. True medical grade ultra-efficient V-Bank HEPA filter captures mold, pollen, powdery mildew, and other contaminants. 975 effective at filtering mold spores and other allergens. Environment /. 3 micrometers, perfect for. Control bugs on contact without using poison. For an extra kick of potency, add ½ tsp of liquid soap. Squash (Cucurbita pepo L. Let them sit in the hydrogen peroxide bath for 3 to 5 minutes. Powdery mildew first appears as isolated areas of fine, graywhite fungal growth on the upper surface of the leaves. Spray directly onto mildew-infected plant tissue. Discolored spots on the walls and ceiling can also indicate mold, and up close, these spots may appear slimy or fuzzy. Run the vacuum over the area, then take the vacuum outdoors to dispose of the contents. As air gets pulled through the unit and. Add a drop or two of liquid dish soap like Dawn to make the solution a bit stickier, if needed. Vinega r – Similar to mouthwash, the acetic acid of vinegar can control powdery mildew. Mold is a fungus that grows in black or green patches. The HEPA standard is set by the U. Carbon Filters & Odor Control /. Although studies have focused on identifying PM-related resistance genes, mechanistic insights into the metabolic regulation networks of resistance against PM have rarely been explored in qingke. 4. 97% of airborne contaminants down to 0. A: It is not recommended to harvest cannabis plants infected with powdery mildew. The disease first appears as a faint white fungal layer on maturing. 1 offer from $179. Not all filters are equal. Prune out diseased tissue and destroy it. Place the pictures in direct sun to aid in this process, but be aware that pictures can fade. 2, Schnée S. Particulates removed with medical-grade Hepa filter at 99. Should be changed every 6 months to 1 year. This time, allow the vinegar to dry naturally rather than rinsing it away. For many air purifiers, staying at the top of the market for years is difficult, but not for Winix. For light odor correction, we carry highly effective odor-blocking gels and sprays. Symptoms usually appear in mid- to late summer. Apply a detergent solution to the mold with a sponge. 3 micron particles and an even higher percentage of larger particles. To test whether the wood is covered with mildew or just dirt, dab the. Some folks swear by mouthwash as an effective fungicide but it is not organic. Apply the milk treatment immediately after mixing. O. get a quote download brochure. 999% on 0. For people looking for style and function, Rabbit Air offers a well-reviewed — albeit expensive — option. Mildew is a downy surface growth that is often found on the surface of vegetables, fruits, or plant materials. MERV 11A efficiencies and higher. 3. If the mold spores aren’t visible with the naked eye, you can take a look under a microscope, a jeweler’s loupe, or a magnifying. Ventilate air out of the grow room periodically during the night cycle to reduce humidity from irrigation and transpiration. It's a compact air purifier that can pull air. Alen’s True HEPA filters capture at least 99. . 99% efficiency at 0. Powdery mildew is a common fungal disease of trees and shrubs in Minnesota. If you have a sealed grow room, and you have an air intake system, be sure to use an intake HEPA filter to prevent contaminants like powdery mildew from entering your growing space. Powdery mildew is not caused one specific fungus but the name given to a group of diseases caused by several closely. 97% or more of airborne particles down to 0. 95–$639. You could use a sponge or cloth. ”. The white substance is likely powdery mildew. Step 2: Vacuum the area. Lastly, put the Airo Home Hobby air purifier to work in your basement grow room. Powdery mildew of mango is an Ascomycete pathogen of the Erysiphales family that was initially described by Berthet in 1914, using samples collected from Brazil. "These units can be used as air scrubbers to re-circulate and purify air or create either positive or negative air pressure environments. Leave the moldy photos to dry before removing the mildew. Most respirators, even the disposable ones, come with exhalation valves. mangiferae is found in all areas where mangoes have been raised long term, but is particularly. When such a filter is fitted onto a vacuum cleaner, it can be effectively used to clean mold spores that are between 4 and 20 microns (micrometers) . Remove the dried mold with a vacuum cleaner. The symptoms are unmistakable: spots or patches of white powder, usually on the leaves. sp. Applied UV, Inc. Filter the intake with a Hepa filter to eliminate spores from entering room. Germ Guardian True HEPA Filter Air Purifier. Note: Once mildew is established, oscillating fans may actually spread spores throughout the garden. Method: Mix the milk and water together in a spray bottle. 3 microns) from the air and is equipped with carbon for heightened protection against household odors and VOCs. Itchy eyes, nose and throat. Open the book's front cover and brush or vacuum away any evidence of mildew on the inside of the cover. Thanks to its true HEPA filter, this air purifier from Winix works to capture 99. Powdery mildew is the most likely to occur when humidity levels are high (above 55%) when there is not much air ventilation happening in your grow area. 1 gallon of water. Powdery Mildew. Powdery Mildew Tip: Powdery mildew struggles in hot, sunny, well-ventilated conditions. Typically you first see the. If there is an area in your house where mold is a stubborn problem—like a poorly ventilated bathroom, kitchen or basement—a. Use a vacuum with a HEPA filter to suck up any loose mold spores on or near the affected part of the wood. You may treat powdery mildew on succulents with insecticidal soap, neem oil, baking soda, hydrogen peroxide, and mouthwash. Always remove all leaves, dying vegetation and dead vegetation from your growing environment. 3 Ensure cleanliness of your growing environment! 5. I have a filter stack at the base of my column that steps from 10 microns, through 8 micron pyrex wool, finally through a 5 micron Filter. 3 microns – almost four times smaller than the average human hair. 97% particles (down to 0. Spray plants weekly with a mixture of one part milk to nine parts water. 1, Kasparian J. The biggest difference between mold and mildew is how they grow. Dry, scaly skin. @ 0. mildew, allergens . GermGuardian Air Purifier with HEPA 13 Filter, Removes 99. 2, Tran M. 6. For a cotton, linen or polyester wedding dress: Leave a paste of lemon juice and salt on each mold or mildew spot for 15 to 30 minutes, and then rinse the spot with water. Mold is fuzzy and raised, comes in many colors, and grows inside its. Let the mildew dry out. . Mold is the common term used to describe a downy or furry growth on the surface or organic matter, caused by fungi, especially in the. Begin learning how to get rid of mildew by scrubbing the area with a 1/2 percent bleach solution. strain and filter through organic. HEPA filters can capture even the tiniest mildew spores, while activated carbon filters can help eliminate odors. Allowing air circulation will. 1), and powdery mildew covered between 10 and 35% of the foliar surface (visual estimation) at the time of the experiment. | Sterilumen | Airoclean 420 3625 Kennesaw North Ind Pkwy Kennesaw, GA 30144 Ph: +1-844-247-3913An economical, safe and effective solution to many of the major air quality concerns of indoor commercial growers. This mildew remover has the scent of lemon that makes it very pleasant to use. The best air purifiers for mold. If you’ve decided to remove mould, make sure there is good ventilation and wear protective clothing, such as a shower cap, rubber gloves, eye protection, overalls, suitable footwear and a P1 or. The Shark™ Air Purifier 4-Fan Anti-Allergen HEPA Filter with Advanced Odor Lock captures 99. Watery eyes. O. Below you. HEPA with antimicrobial layer: These filters have been coated with a chemical that kills microbes, including mold spores. Winix 5500-2 4-Stage True HEPA Air Purifier is 41% off. leaves, stems and ears, although leaves are most commonly infected. Small but mighty, the ozone machine odor removal is perfect for neutralizing smoke and pet odors; eradicating mold and mildew; purifying the air from dust and other airborne allergens; or lifting mood thanks to ozone's. We constructed a cucumber genetic linkage map based on a population of 111. capacity HEPA/ULPA . Quick facts. 6. To remove spores, an air purifier needs to have a HEPA filter,. This is the best strategy for avoiding powdery mildew. Vinegar: The vinegar in your pantry is mainly diluted acetic acid, which can control powdery mildew. This will provide your plants with the cleanest, highest quality air while effectively removing stinky, contaminated, hot air. 5,138. Mildew is flat and grows on the surface of things. Unlike sieves or membrane filters, where particles smaller than openings or pores can pass through, HEPA filters are designed to target a range of particle sizes. Ionizers use negative ions to remove small particles in the air. Do this outside so the mildew does not infect your house. It occurs following warm days and cool nights with high relative humidity often seen in the spring and fall. Symptoms: White powdery spots on leaves; may be on upper and lower surfaces. It serves as a model system for studying biotrophic pathogens. Multiple panels of pleated media . Treatments were made two times, with an interval of a week, starting immediately after the appearance of the first. There are several ways to treat your infected succulent. Warm days followed by cool, humid nights provide ideal conditions for the. HEPA Air Scrubbing. , 2013) to 850 L min −1 for the Jet spore trap (Limpert et al. It’s best to call a mold restoration. These spots quickly enlarge, turning into a dusty white or gray coating. ) worldwide. To filter gases, choose a portable air cleaner with an activated carbon filter or. Powdery mildew appears in the form of white, later grey-tan areas on all aerial parts of cereals and grasses i. Mildew begins as a gray or white powdery colony and eventually turns black or brown. Mold occurs when you leave fresh or not fully dried/cured buds in a jar for too long without opening. Simply connect a tube to your ozone generator, and connect this to an air stone in a reservoir. High night humidity levels often trigger the growth of mildew spores. Baking Soda. . ticulate air (HEPA) filters to clean up dust and debris. The 63. The symptoms usually appear late in. If you see a patch of flat “stuff” lying on the surface of a moist area, it is most likely mildew. If leaves are inundated with either mildew, we may not ripen fruit well, and premature. AiroClean420 air purifiers combust airborne contaminants. Powdery mildew can affect all above-ground parts of bean plants. Powdery mildew on plants, referred to as PM for short, is a fast-acting, harmful fungus. This can help reduce odors and make the air seem fresher. Virus, microbes, and bio-contaminants on plants and hard to reach surfaces are reduced by 99. VIEW PRICE . Powdery mildew is difficult to 100% eradicate; control requires prevention, early detection, and pro-active measures. Powdery mildew is a common fungal disease that can seriously damage indoor and outdoor crops. ”. It affects a wide range of plants, including. Your crop can get infected even if you use the best cannabis. Here, we integrated transcriptomic, proteomic and. Use a vacuum with a HEPA filter to suck up loose spores with the soft brush attachment. 1. Susceptibility of leaves is greatest 16 to 23 days after unfolding. The filter and contents of the HEPA vacuum must be disposed of in well-sealed plastic bags. Test old siding paint for lead using a lead test kit; if lead is present, contact a licensed lead abatement specialist. With that said, not all air purifiers are equipped to do this. Shark Air Purifier 4-Fan Anti-Allergen HEPA Filter Hepa Air Purifier Filter. Stop powdery mildew with a HEPA filter box. At $895, it is a significant, but worthwhile investment to help you maintain a powdery mildew-free home grow. This four-in-one air purifier for mold is a great budget option. 7-star rating on Amazon and over 37,000 ratings, it is a reliable option. 97% of Pollutants, Covers Large Room up to 743 Sq. (4. For Eliminating: Mites, Thrips, and Whiteflies: Apply every day for 3-5 days, then as needed. Check the next day, then spray twice on second day,wait one day if still around repeat. 5 Decontaminate and maintain your environment with hydrogen peroxide. High. Run the vacuum over the area, then take the vacuum outdoors to dispose of the contents. Use the solution to sponge down the molded area and kill mildew, mold, and toxic bacteria at 80%. Inspect the Siding for Mildew, Powdery Paint Pigment, and Mildew. . Guaranteed to maintain efficiency and last longer. The acetic acid in apple cider vinegar is very effective in killing powdery mildew. Vornado Air Purifier for Mold – Most User-Friendly. Baking Soda Mixture. Inspect the book pages, looking for spots or residue that may be mildew. Quest H5 Replacement HEPA Filter. ) is a globally important vegetable, the production of which is severely constrained by powdery mildew caused by Podosphaera xanthii. Powdery Mildew. Apply a detergent solution to the mold with a sponge. Shake the contents to mix well and pour at the base of plants or trees to treat powdery mildew. Price range (MSRP): $549. Also, using UV-C lighting for growing cannabis can be greatly beneficial. The fungal mycelium grows and in time can cover large parts of the plant giving them a dusty, powdery, or silvery appearance. Use Vinegar: Mix one part vinegar and one part water. Never mixUnfortunately, it is impossible to get rid of all mold spores in the air so you need to replace the air filter in your ac unit regularly. For many air purifiers, staying at the top of the market for years is difficult, but not for Winix. Powdery mildew does not cause significant damage to the health of the tree. Cough and postnasal drip. SAVE $ 1. The fungus on the inoculated plant was re-isolated, and identified as E. Step 2: Vacuum the area. Install a high-efficiency particulate air filtration, aka HEPA, in the grow room to filter and purify the air by removing any molecule as. Erysiphe cruciferarum, a causative agent of powdery mildew disease, has emerged as a serious threat in Brassica juncea and its closely related species. The soap helps the mix spread and cling to the leaf surface. Healthy plant protection. While some trees and shrubs are more susceptible, almost any woody plant can be infected under the right conditions (favoured by shading and high humidity). 97% of 0. This four-in-one air purifier for mold is a great budget option. The Core 300 is a quiet HEPA filter with low-level noise of 24db (about the same as someone whispering to you). 7% of airborne particles 3 micrometers or smaller from coming in through your ventilation system. First, you will need to ozonate water. These filters offer protection from dust, pollen, hair. Mildew is a downy surface growth that is often found on the surface of vegetables, fruits, or plant materials. Ready to Stop Powdery Mildew? Fill out a simple form to get pricing for AiroClean420. Powdery mildew can rapidly infect crops in both vegetative and flowering stages, coating leaves, stems and buds in fungus. It happens. Southern blight. Abstract. "The term 'mildew' basically refers to mold growth that’s light in color and powdery in texture," Rubino says. Remove the dried mold with a vacuum cleaner. Dual-layer design keeps contaminants out with minimal airflow restriction. Powdery mildew. Using a clean cloth, wipe away the mold. True medical grade ultra-efficient V-Bank HEPA filter captures mold, pollen, powdery mildew, and other contaminants. Make sure the vacuumed material is tightly sealed in a plastic bag, so no spores can escape. Short answer: Mildew is just a different type of mold. Heat night air. What Is Powdery Mildew? Powdery mildew can be caused by many different species of fungi, although the most common in cucurbits is Podosphaera xanthii. Best for mold & dust mites: Levoit Core 300S. 7-star rating on Amazon and over 37,000 ratings, it is a reliable option. The VEVA ProHEPA 9000 Air Purifier is one of the most powerful air purifiers on the market, with a CADR rating of 135 cfm. 1 Clean as You Go. It also occurs when there is overcrowding of your marijuana plants at the grow site or in the grow room. You need a purifier endowed with a good filtration system. Remove and dispose of infected leaves and stems,. Symptoms: leaves change color (red, purple, or bronze) prematurely (summer); leaves may have brown edges/wilting; peeling, cracked bark near the base of the tree. Powdery mildew is a bit more difficult to spot since the fuzz looks similar to kief and resinous trichomes, and if that’s the case then move on to the next step; Check with a microscope or a magnifying glass. Mix with water; 30% mouthwash and 70% water, and use the solution to spray your plants. * Sulphur burner. 3 microns in size or larger from passing through them. Like mold, mildew grows from microscopic spores that move through the air. Mold is a fungus that grows in black or green patches. Powdery mildew Powdery mildew is caused by a fungus and is seen as a light gray or whitish powder on the upper surface of leaves. A mold ( US, PH) or mould ( UK, CW) is one of the structures that certain fungi can form. Here’s what the best air purifier for mold in the world can do: #1 iAdaptAir is the most effective air purifier for mold. It will appear either powdery or fluffy. Hi-Flo ® ES. Try to plant your phlox in a sunny area and thin any overcrowded areas. Disease is often most severe on young leaves and green shoots. For stubborn mold, scrub the area with a stiff brush and a vinegar solution of about 1/8 cup of white vinegar and 1 gallon of water. To remove spores, an air purifier needs to have a HEPA filter, which is a type of filter used to remove solid particles from the air. Garlic. Install air filters and UVC lights. 97 percent of airborne pollutants, including mold particles as small as 0. . Communicate regularly with building occupants about the on-going construction work to minimize anxiety among the employees. Erysiphe cichoracearum, Sphaerotheca fuliginea, and Podosphaera xanthii are the types that most commonly impact zucchini. 0% solution (5–20 grams per liter) of potassium bicarbonate to water. Pruning. These air filters are known to remove up to 99. Use potassium bicarbonate. For reference, mold spores are usually between two and ten microns in size. Uvonair 10" CD In-Line Duct Ozonator - 2 Cells. To date, no resistant cultivars have been identified in Brassica species against powdery mildew. About Us. For a washable silk or wool dress: Drip a 1:1 mixture of white vinegar and water on each mold spot with an eyedropper and leave it for 10 minutes. It’s too easy to forget a half-eaten sandwich under the bed—until it starts stinking up the whole house. Take care to not make the mixture too strong, as the acidity of the vinegar can burn plant leaves. Use duct tape to secure that filter to the sides of the aluminum ducting. Sort By: Set Descending Direction. Main conclusion A putative powdery mildew effector can elicit defense responses including reactive oxygen species and callose accumulations in model plants Nicotiana benthamiana and Arabidopsis thaliana and host plant Hevea brasiliensis. Once you have the necessary equipment, it’s time to clean your grow tent. It’s designed to protect the True HEPA filter from mold, mildew, bacteria and other viruses. You can see white, cottony growth on the bottom of the leaves. HEPA filter – also known as true-HEPA is an approved system that captures up to 99. 4. Follow with a cloth dipped in clear water, then wipe. Alen’s True HEPA filters capture at least 99. They can filter out.