Blueair 402 Air Purifier with SmokeStop Filter - HEPA-Silent with Odor Control The 402 effectively purifies air in rooms as large as 365 square feet. Using patented two-stage HEPASilent technology it captures 99.97% of the tiniest 0.1 micron particles on level one including allergy-provoking pollen grains dust mites mold spores and pet dander particles. . Blueair is the system for people living with allergies asthma or other respiratory conditions or for anyone who wants cleaner more breathable air. . This same filter technology earned the larger Blueair units Best of Class ranking in independent testing of Clean Air Delivery Rates. The 402 provides comparable performance for mid-sized rooms.. Value-added features include quiet operation low energy use galvanized steel construction and easy maintenance: simply open the side slide out used filters and drop in replacements every 6 months.. CADR (Clean Air Delivery Rate): smoke 240 dust 250 pollen 255. 4 Filtration Speeds. 10 Year Warranty. . Includes smokestop filter with more activated carbon for better smoke and gas removal

Honeywell 50300 True HEPA Round Air Purifier True-Hepa Round Air Purifier; Removes 99.97% of all air borne particles from the air passing through. MODEL- 50300 VENDOR- HONEYWELL FEATURES- Honeywell enviracaire Air Purifier- White #1 Choice of Physicians. Removes 99.97% of all air borne particles from the air passing through, such as pollen, cat dander, household dust, tobacco smoke, and mold spores. Activated carbon pre-filter, helps reduce odors and extends Hepa- filter life. Recommended for a 20 foot x 23 foot room Intelli-Check feature electronically monitors filter usage. Patented 360 degree air intake and discharge for effective air cleaning power. * Clean air delivery rate (CADR): 300 * Top air discharge * Speeds: 3 air cleaning power levels MANUFACTURER WARRANTY:andnbsp;andnbsp;1 YEAR
Customer Review: great cleaner volume, loud white noice
Honeywell 50250N 99.97% Pure HEPA Round Air Purifier
This is a review for the 50300 which is similar to the 50250.
This air cleaner really puts out the volume of clean air on high speed, but it is loud. You can not talk or hear over it.
The slow speed is you can hear talking and TV over. Then turn it on high at night for white noice or when you leave the room.

IQAir HealthPro Air Purifier - HEPA Air Cleaner One of the world’s most efficient HEPA air cleaners in its class. Incorporates H12/13 class certified HEPA filter, normally used in multi-million dollar cleanrooms. This certification under the world’s most stringent HEPA filter test, European Norm EN 1822, is the basis for this air cleaners’ ability to capture up to 100 times more particles than conventional HEPA cleaners. In fact, while other air cleaners are rated only for particles down to 0.3 microns, IQAir systems have been found to remove particles down to 0.01 microns with close to 99% efficiency. Unit Weight: 25lbs. Dimensions: W 15″ x D 16″ x H 20″. Coverage Are: 900 sq. ft. Power Requirements: 115 V/60 Hz. Energy Consumption: 215 Watt Max. Fan Type: 6 Fan Speed Settings and 700 CFM Capacity. Air Delivery: 30-240 CFM. Ultra-quiet design, no air drafts, and low energy consumption. Includes: Filters, owners manual, set of 4 casters, 10 foot power cord, and certificate of guaranteed performance. Display Panel Indicators: programmable timer status, remaining filter life, and fan speed indicators. System Efficiency for Particles: 99.97& at 0.3 microns and 99% for smaller particles. Filters Life: Pre-filter last up to 6-18 months, and Cleanroom grade HEPA filter last up to 2-4 years. Pollutant Filtration: Mold spore, pet dander, dust mite, pollen, general indoor particle, and other allergens.

Hunter 30090 QuietFlo HEPA Air Purifier with 3-Speed Fan Are smoke, pollen, dust mite detritus, mold spores and pet dander causing your allergies to flare? The HUNTER QuietFlo 90 purifies a room up to 10′ x 12′, and boasts a Clean Air Delivery Rate (CADR) of 80 for dust, smoke and pollen. A mechanical filter change reminder and whisper-quiet 3-speed HUNTER fan make this an excellent choice for home or office. Low annual maintenance costs Space-saving slimline styling fits flush against the wall Replacement HEPA Filter - 30936 Replacement Pre-Filter - 30901 5 year limited warranty protection
Customer Review: Good and Quiet
I chose this purifier because it was inexpensive and got a decent review on Consumer Reports. I am very happy with it because its quiet on the low setting so I can leave it on overnight. My husband didn’t even notice it was on. (We had to turn off our old purifier but it was meant for a larger room). Only minus– don’t count on being able to use the replacement timer because I found one of the knobs impossibly hard to turn. I guess a little post-it note will do.
Customer Review: Compact decent arifiler
The Hunter 300090 appears to have decent build quality. Fan is not as quiet as I was hoping for, but should not be too loud in most situations and does move a lot of air. Filter is easy to replace. Unit is nice that you can mount on the wall, lay on its side, or stand upright.