I bought the PureGuardian Spa Ultrasonic Aromatherapy Oil Diffuser(2-pack) from Costco.com about 2 months ago. There was $25 off discount. The current price is $79.99 at Costco. I paid $55 + tax + free shipping.

I was aware some not so good reviews but still decided to give it a try since Costco got good return policies.

I am glad I bought them and have been using them every single day since the day I received them! I am lucky that both of the diffusers function well. I use them mostly as a humidifier.

I like them a lot, because:

• filling a half cup of water is so much easier than filling 1 or 2 gallons of water! That half cup of water can last about 7 hours.
• cleaning a mug size of the container is much easier than a big tank. It’s also much lighter!
• it’s so quiet, you barely notice it’s there
• humidifier is good for me skin

I also bought the Paradise Springs Essential Oils Kit from Costco.com. It was on sale too, probably $10 off, currently $37.99. I use about 3 drops in the diffuser which is strong enough to me.