Honeywell HRF-D1 Universal HEPA filter, HRF-D1 / Filter (D)

Works great for mine! It does appear to be slightly (& ever so slightly) different than the original for the Honeywell 50100, but WITH the gasket it fits just right. I’ve had my machine for over 15 years with 4 different home moves & it’s still working great!

This Honeywell HEPA Filter #HRF-D1 piece was purchased for the Honeywell enviracaire Portable True HEPA Air Purifier table top model series model 50100 and is suitable for other series as indicated. It was delivered standard in the Covid lockdown in few days quickly and packaged in Honeywell original box including the round foam baffle. It was extremely easy to just drop into the unit and performs perfectly without odor. The item is exactly as described and pictured and is reasonable priced. It should last years. Appears works well and would buy again. This filter also requires a second piece Honeywell Pre-Carbon mesh Filter Wrap # purchase separately.The two pieces purchased separately tax included coast about 65$. Another item purchase set together with the same two pieces and almost described the same was priced at over 103$. The only difference was the HEPA filter was indicated as an “A TRUE filter rather than a “D filter. The descriptions seem the same. Maybe they perform different. It’s hard to decipher. Honeywell phone rep advised both filters suitable.

Plus petit de épaisseur mais sa fonctionne quand même. Très satisfait .

Make sure that your device doesn't need two of the filters. My 17000 device needed two so I had to reorder another. It does have a smell to it but not too bad.Update: Dec 2018 I live in Southern California. We were close to the Hill and Woosley fire and the AQI (Air Quality Index) was horrible in my area. I brought my air purifier everywhere. To work, at home, placed it in close to any windows or doors that could not completely seal off the air from outside etc. Man, I didn't know the air was so bad. When I checked the pre-filter and the two newly purchased filters, I was stunned by how much my device caught. Honestly! Purchase them just in case. My asthma was not as affected by the air quality because I had recently replaced my filter!

Upon finding that I can no longer purchase the full-sized filter for my air purifier, I was informed that 2 of these can double up and do the trick. This is my first purchase in that attempt. The bad news is that when they first arrived and I opened them, they reeked. A lot of plasticky rubbery off-gassing. I went ahead and installed them (they fit fine) and then ran it during the daytime in a spare bedroom with the door closed for 3 days straight. It really reeked the whole time with such a strong, noxious odor that I wouldn't dream of normal use. I was disappointed but decided to put my old HEPA back in for the time being until I figured out what to do. I left these new filters sitting out in an unused room for several months, occasionally turning them over if I thought of it. I recently (4 months later) decided they didn't really smell much anymore and to give them another try. Fortunately, this time around the odor had diminished, so I was able to use normally and with satisfaction. I have a very strong and sensitive sense of smell and I don't notice it anymore. I do believe the actual filter part works fine, for example if there is a strong food odor in the room, it will quickly diminish when the filter is turned on. So it is just the black side plastic that is so offensive. I might order these again, I'll just be sure to do so a good deal ahead of when I need them and then go ahead and open them and leave them somewhere to offgas for months. I would have given these a 1 star initially, but a 5 star for their current use, hence the middling rating. I guess this is the best I'll be able to do now, anyway.