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The Power of Water®

How the Rainbow® System works.

Most cleaners push fine dust right back into your air. The Rainbow® System does something fundamentally different.

The simple idea

Water traps what bags can't.

Instead of a bag or paper filter, the Rainbow draws air through a basin of plain water. Dust, dirt, dander, and allergens get caught in the water and locked away — so they end up down the drain instead of back in the air you breathe.

That's the meaning behind the Rainbow's two best-known phrases: The Power of Water® and Wet Dust Can't Fly®.

Rainbow SRX in air cleaner mode
What it does for your home

One system, whole-home clean.

1️⃣

Cleans your floors

Powerful airflow that lifts dirt from carpet, hardwood, tile, and everything in between.

2️⃣

Freshens your air

Acts as an air cleaner, capturing airborne particles instead of recirculating them.

3️⃣

Tackles surfaces & more

Attachments handle upholstery, mattresses, pet areas, and tight spaces.

Certified clean

Independently recognized.

Built by Rexair, which has manufactured the Rainbow for 90+ years and sells it in 80+ countries. Two separate labs back it up: one rates how much clean air it moves, the other checks that what it picks up stays in the machine.

AHAM
Verifide®

Certified air cleaner

Association of Home Appliance Manufacturers — AHAM Verifide® program

Independently tested Clean Air Delivery Rates for the Rainbow® SRX. In a room like a living room, that's all the air passing through the water in about 15–20 minutes.

150Pollen CADR87Dust CADR74Smoke CADR
asthma & allergy friendly®

Certified asthma & allergy friendly®

Asthma and Allergy Foundation of America (AAFA) with Allergy Standards Limited

Tested to remove allergens while you clean, keep them inside the machine, and not put them back into the air. Certification covers the main Rainbow® system.

AHAM Verifide® ratings shown for the Rainbow® SRX (AHAM model RHCS19). Room-air figure based on AHAM's 115 sq ft test room at 4.8 air changes per hour.

Do the quick math

What do replacement filters really cost?

Most conventional cleaners rely on filters that need regular replacing to keep working right. The Rainbow's main filter is plain water — you just rinse the basin. Drag the sliders and see how it adds up.

Conventional cleaner$600in replacement filters
Rainbow®$120water is the filter — just a HEPA neutralizer every ~4 years

You'd keep about $480 in your pocket.

Estimates only — based on a $60 genuine HEPA neutralizer roughly every 4 years, and your own figure for what filters cost you today. Actual costs vary by model and use.

The best way to understand it is to see it.

Book a free, no-obligation in-home demonstration and watch the water do the work.

Request Your Free Demo
📞 (610) 685-1000Free Demo