GermGuardian WiFi Smart Air Purifier

Meet the GermGuardian air cleaner: a WiFi smart air purifier that works with Amazon Alexa to let you monitor and control air quality from anywhere in the world. It reduces odors and provides you with allergy relief in your home. The device comes with a filtration system to capture 99.97% of allergens. You will just have to replace it every 6 to 8 months.

This multi-function air purifier is compatible with iOS and Android devices. It detects the amount of particles in the air and adjusts the speed of purification automatically. Costs under $200 at this time.