Investing in a decent air purifier is a wise idea for those of you with allergies. The Coway Airmega AP-1512HHS is an Alexa compatible air purifier with True HEPA and activated charcoal filters to get rid of 99.97% of 0.3-micron particles. It works with the Coway IoCare mobile app too.
This air purifier has a pollution sensor to give you feedback on air quality in real-time. It has 3 fan speeds plus an auto mode. It covers 325 sq.ft of space.