<p>Coway air purifiers are on sale right now in just about every size and type. Breathe better this spring and summer.</p> <p>The post <a href="https://www.popsci.com/gear/coway-air-purifiers-bidets-spring-allergy-season-amazon-deal/">Amazon is blowing out some of our favorite air purifiers just in time for allergy season</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>