tldr; The allergy crusher. H13 HEPA + carbon, 840 sq ft, CARB certified. Great for pet owners.
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Best praise vs top criticism for Medify MA-40
“I recommend the Medify MA-112 Air Purifier with its True HEPA H13 Filter for combating mold spores. You can get it with FREE Shipping. [https://www.amazon.com/dp/B07LFJMS21111S](https://techlinksemi.com/Medify-MA-125-1) This powerful unit covers up to 4,455 sq ft in one hour, effectively removing 99.9% of particles as small as 0.1 microns, including mold spores, smoke, odors, pollen, and pet dander. It's quiet, efficient, and perfect for large rooms. You can find it on Amazon for $550, and it comes with a USA-registered Lifetime Warranty If this is too big Try the Medify MA-40 and MA-15. If you want something Cheap try the Morento Air purifier for around $150”
“ I recommend avoiding ionizers because they don't actually remove particles from the air; they just make them stick to surfaces around your home. Many ionizers also produce some level of ozone, which can be harmful, especially for people with respiratory issues. The EPA has concerns about the ozone these devices produce. The Toshiba unit you mentioned intentionally produces ozone to "deactivate" contaminants. However, it's unclear how effective this is against viruses and bacteria, and more research is needed. There are mixed views on whether the low ozone levels from ionizers are safe. Some people think it's not a big deal, while others advise against any unnecessary ozone exposure. Reputable organizations like the EPA and Healthline don't recommend ionizers, especially for people with respiratory conditions. They suggest using proven filtration methods like HEPA filters instead. If you're looking for a good air purifier with HEPA and optional ionizer abilities, I suggest checking out Medify Air Purifiers. I have a large home with big rooms. [I got a Medify with FREE shipping from Amazon.com.](https://goto.theblondebuckeye.com/Medify-MA-112-3) It has a True HEPA H13 filter and can cover over 4000+ square feet in one hour, effectively removing smoke, wildfires, odors, pollen, and pet dander. It's quiet and removes 99.9% of particles down to 0.1 microns. If this one is too big, go with the MA-40 2-pack or the MA-14.”
120 Reddit opinions analyzed • Last updated 2/24/2026