Certifications
Highlights
Refillable
Dishwasher safe
1 year warranty
Money-back guarantee
Ultrasonic
Up to 500 sq ft
1.1 gal
As an Amazon Associate, we earn from qualifying purchases. Affiliate links do not affect our ratings. Learn more.
Best Stainless Steel Humidifiers
We vetted humidifiers against the Welpr Standard and here are our top picks.
Cofounder & Product Curator
Medical Reviewer, PhD
Here's what we look for:
- Materials like food-grade 304 stainless steel (especially for the tank) or BPA-free plastic, with minimal plastic parts in contact with water
- Free from BPA, phthalates, lead, and other harmful chemicals
- Certifications like RoHS whenever available
- Effective, well-reviewed products from trusted brands
The Best Stainless Steel and Glass Humidifiers
On Welpr, terms like "non-toxic," "safer," "cleaner," "healthier," and "vetted" are editorial labels based on our own standard for product assessment. They are not guarantees, certifications, or medical claims. Learn more.
Free email mini-course
Welpr Blueprint: Go Non-Toxic Mini-Course
The 80/20 guide to going non-toxic the easy way.
Certifications
Highlights
Dishwasher safe
1 year warranty
Lifetime warranty
Ultrasonic
Up to 650 sq ft
1.8 gal
Certifications
Highlights
Dishwasher safe
Food-contact safe
Steam vaporizer
Up to 800 sq ft
0.9 gal
Certifications
Free From
Highlights
Dishwasher safe
1 year warranty
Lifetime warranty
Money-back guarantee
Evaporative
Up to 500 sq ft
0.7 gal
Certifications
Highlights
Refillable
Dishwasher safe
1 year warranty
Money-back guarantee
Ultrasonic
Up to 700 sq ft
1.1 gal
Camille May
Cofounder & Product Curator
Camille May is the co-creator of Welpr and a guide for clean living. After selling her last company in the health food space, she went non-toxic while working to heal an autoimmune condition....
Olushola M. Awoyemi
Medical Reviewer, PhD
Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology,...