![New York stores see air purifiers sell out, school teachers told to stay home amid hazardous air quality New York stores see air purifiers sell out, school teachers told to stay home amid hazardous air quality](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/06/1200/675/air-purifiers-sold-out-1.png?ve=1&tl=1)
New York stores see air purifiers sell out, school teachers told to stay home amid hazardous air quality
![Amazon.com: MORENTO Air Purifier Smart WiFi Alexa Control for Home Large Room Bedroom Up to 1076 Ft² with PM 2.5 Display Air Quality Sensor, Auto Mode, HEPA Filter Removes Pet Hair, Dust, Amazon.com: MORENTO Air Purifier Smart WiFi Alexa Control for Home Large Room Bedroom Up to 1076 Ft² with PM 2.5 Display Air Quality Sensor, Auto Mode, HEPA Filter Removes Pet Hair, Dust,](https://m.media-amazon.com/images/I/81n6FXyg5LL.jpg)
Amazon.com: MORENTO Air Purifier Smart WiFi Alexa Control for Home Large Room Bedroom Up to 1076 Ft² with PM 2.5 Display Air Quality Sensor, Auto Mode, HEPA Filter Removes Pet Hair, Dust,
![China's pollution levels spark boom in sale of air purifiers and face masks | Pollution | The Guardian China's pollution levels spark boom in sale of air purifiers and face masks | Pollution | The Guardian](https://i.guim.co.uk/img/static/sys-images/Environment/Pix/pictures/2014/3/7/1394192494295/Customers-shop-for-air-pu-009.jpg?width=465&dpr=1&s=none)
China's pollution levels spark boom in sale of air purifiers and face masks | Pollution | The Guardian
![Joshua C. Agar on X: "Tips when buying commercial air purifiers: #1: Always ask for the replacement filter first. That's what to evaluate. The filter has to be white and heavily pleated Joshua C. Agar on X: "Tips when buying commercial air purifiers: #1: Always ask for the replacement filter first. That's what to evaluate. The filter has to be white and heavily pleated](https://pbs.twimg.com/media/Fh-rzgsaYAAnDsc.jpg:large)