pollen filter

Hi all. My question is pretty much what it sounds like - are combo units as good as dedicated purifiers or dehumidifiers, or are they mediocre at both tasks? For context: I have a nasty combination of asthma and hayfever, so I'm planning to get an air purifier with a HEPA filter to remove...

Hi guys, I recently had my vehicle routinely serviced and the pollen filter changed as part of that. When I next started driving it and using the fan however lots of "pollen" started to blow into the car. I thought that the pollen filter keeps this stuff out so I sent the car back to the...