Frida Baby 3-in-1 Baby Air Purifier Versus Sound Machine: Tested Relief for Allergies…Sleeping Easy This Season! We’ve been testing the Frida Baby 3-in-1 Air Purifier, and so far, it’s delivered on its promises. With a HEPA filter, three fan speeds, and an easy-change filter system, it’s quietly working to remove airborne particles that trigger allergies in our home. We appreciate how it doubles as a sound machine and nightlight, softening the room for better sleep. The auto-off timer is a plus, ensuring it doesn’t run unnecessarily. While the noise levels remain minimal, it hasn’t disturbed our little one. We’re especially impressed with how it’s made a visible difference in air quality. If you’re looking for a multifunctional solution to improve sleep and allergy comfort, this purifier offers a smart, hands-off approach.