Honeywell Pre-Filters for Air Purifiers, HRF-A300, 4-Pack

Less hassle than cut to size ones.

Great but be aware of size... I have two air cleaners. didn’t realize they were different sizes til I went to buy new filters! These fit my big one perfectly and I had to trim off a few inches for it to fit my smaller but that was easy and thickness perfect. I have had my one air cleaner for over 6 years and usually just vacuumed the filter every month or so... first time to buy new... extra dusty from construction so a new one in order but basically, these last and do t be afraid to vacuum them.. with the hand held attachment! Great product and came I’m with four. Happy!

Once every few years I get mad at the price of the OEM replacements and I go out and buy the no-name brand pre-filters. I run into the same thing every single time. They are too thick and restrict the airflow and basically suffocate the machine. The last one was literally just spreading dust around and choking me. I ran out and used an old Non-OEM. The replacements came today (despite being left in the rain with paper packaging) and already the air circulation is better, the machine is making less noise and I can breathe again. Don't listen to me if you want. but I am never buying (and I've tried many) off brand prefilters. I'd rather buy a new machine.

These are the only pre-filters one should use in the Honeywell HEPA air filters

Prefilter works great.

good filters

These pre-filters came folded in a box, so the these have a crease in them. This is a slight annoyance, but still better than the alternative cheaper option where the buyer needs to use scissors to cut the correct size. These are a perfect fit once I flatten them out. Quality is not as thick as the original pre-filter that came with the air purifier. I would buy these again since they are conveniently pre-cut, and there are no black specs that come off like the other the option that Honeywell sells which is uncut and rolled up.

I’ve been using this type of filter and recently found this version that’s precut to size. Not having to cut the filter myself made changing filters faster and cleaner.

Happy to find 4 filters at a reasonable price. We really appreciate the air filter and find that there is so much less dust around especially for a severe asthmatic. The only drawback was the price of replacement filters so we were very pleased to find a box of 4 which is a year's supply of the A filters at a reasonable price. They fit perfectly and were easy to install.

The updated material is substantially better than the old replacements with much better density and quality. It fits the HPA300 correctly.

Can't really say much more . They are just good air filters

I was have a very hard time finding the proper pre-filter to fit my Honeywell Insight HPA5250. The included manual gave filter model numbers that simply do not fit this unit. As the manual was for full line, it looks like they only gave the smallest filter part number. I decided to shop by size instead and chose this 4-pack which is for the the largest unit in the Insight line. Using the old filter as template, i trimmed to fit and solved the problem. I ended up with enough left over to also replace filter in my old HPA-051c! I will be able to replace filter in my HHT-011c as well with left over trim from next Insight replacement.

Product works as expected.