Woosh Smart Air Filter Review: No More Guessing

“It’s a useful way to monitor the pressure drop on the filter – it’s a good way to know when it’s time to change the filter because otherwise, it’s just guess work,” says Li. It is suggested that a three-month warranty is instead based on an estimate of 20 percent of your HVAC’s operating time (about five hours per day). Much of this depends on your climate, but Li says recent research found that the average HVAC downtime for 20 homes over a year in Toronto was 10 percent, meaning that those people were more likely to replace their air filters.

As for the MERV 13 rating, Li says the high resistance makes the HVAC fan work harder. Depending on your system, the fan will stop Stop working hard, reduces air flow and damages the cold windows. However, a higher MERV rating does not equate to higher resistance to running. It depends on the quality of the filter, as Li says he’s seen MERV 13 filters with lower emissions than MERV 8. Ultimately, Li says the biggest factor is the age of your HVAC system.

“If this is a new system that is fine, and you’ve been using MERV 8 filters without problems, then I don’t think there would be any problem using MERV 11, MERV 13, or MERV 14 filters because even if there is a difference in flow resistance, it’s minimal. ,” he says. “I think most machines will be able to do this, especially if you don’t change your filters throughout the year.”

People with older systems should be careful, because they cannot use the most advanced filters. They recommend listening to the sound and feeling the flow of cold and hot air in your home.

The good news is that Woosh’s smart filter can detect problems with your HVAC system. The company says it can detect early signs of coil cooling, which if left untreated can cause irreversible damage. It controls this by checking pressure drop and air pressure as well as temperature and humidity.

Fortunately, using a MERV 13 filter doesn’t seem to cause any problems with my system and I haven’t received any notices of problems with my HVAC. My concern is that, according to this program, I on I haven’t had to change my filter even though it’s been nine months since I installed it. My bag is happy, but everything I’ve heard and read about filters suggests that I should change.