VEVOR Filter Replacement, 24'' x 24'' x 11.5'' AC Filter, HEPA Pleated Air Filter, Air Filter Replacement with Durable Galvanized Frame, 99.97% Standard Filter Compatible for HEPA Filter Novair 2000

I was concerned when I received a very obviously damaged filter, but I was not charged anything additionally and the replacement came very quickly. There may be some lesser QC, but I think the price is worth it in addition to the convenience. This unit filter 99.97% of contaminants at .3 micron, for $150 after tax it's hard to beat at this size. I believe there are other models filtering 99.99% in the $400 range, but if you're not a heart surgeon this one should suffice for most applications.

I love this filter as a better replacement to my last one. Costs less with better quality and better results. Everything stays clean and it has a cage to protect from dents or rips in the filter. I have no complaints.

Shipped with innovative foam end caps not cheap Styrofoam. Also hard plastic corner protectors on all 8 corners. Heavy cardboard box over that. Not a blemish on the filter faces. This looks like an upgrade over some of the other reviewers pictures. Serial numbered label on filter body.Eff 99.99% /size 610x610x292 /test flow 2200m3/h /particle 0.3uM. Galvanized sheet metal frame polished and absolutely NO distortion. For $129 this filter is a steal! Will be using for laminar flow table. The product pictures are spot on.

I put this in my shop smoke eater. Amazing difference. Was a bit taller but made it work

The filter was shipped ok. I've set it up and it's working very nice. Testing with a particle meter I have nothing and I can leave it run all day to clean the air in the house. I will pick up to make a filtering unit just for house air or try to add into my HVAC unit with a booster fan.

I'm getting great laminar airflow with an eight inch duct fan at half speed. (AC Infinity CLOUDLINE S8, Quiet 8” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics) Two of these filters side by side will be no problem for the fan I have. My flow hood runs very quiet with the Cloudline fan, which doesn't seem to feel any air resistance from this filter and it's pre-filter at all. Even on the lowest fan speed I get laminar flow. Turbulence only happens at very high air speeds, high enough to blow my eyebrows around. I'm very happy with this purchase.

I was very skeptical that it was going to work and be able to filter clean air because of the way it looked as it arrived. The package didn’t seem like it was completely sealed or may have been sent to someone before. Filter had a dent in it and the box was heavy damaged. But at least it works for now so far so good

I put this filter in a laminar flow box and have gotton great laminar flow from it on low fan speed. It was obviously on sale when I bought it because the price has jumped drastically. I'm hoping they put it back on sale so I can grab another one!

The filter arrived damaged with two big dents. However, due to urgency i accepted it.