MicroChamber for Metered Dose Inhalers (MDI)

The MicroChamber® Aerosol Holding Chamber fits most Metered Dose Inhalers (MDI). Easily drops into bag, pocket or purse, and costs much less than similar devices. Small, convenient to carry, dishwasher safe, latex free and anti-static delivery.
MSRP $16.00 Selling Price $13.99
In stock

This product provides relief from: Asthma

MicroChamber® is an aerosol holding chamber (spacer) for use with metered dose inhalers (MDI). Using an MDI without a spacer often results in aerosol medication ending up in the mouth, throat, trachea, and even the stomach. In contrast, MicroChamber for metered dose inhalers effectively delivers aerosol medication from your MDI directly to the lungs, where it is needed most. MicroChamber is compatible with virtually all MDI products. It is proven equally as effective as larger spacer and chamber devices, but is far less expensive, and much smaller and easier to use. MicroChamber is FDA 510K approved as substantially equivalent to other spacer/chamber devices, and is the smallest aerosol holding chamber on the market.  Box contains one (1) MicroChamber® device and full instructions.



  • Optimizes MDI medication benefits by delivering more medication to the lungs
  • Compatible with most mask products (22mm connector)
  • Clinically proven to be as effective as larger devices, but at much less cost
  • Built-in air vents increase tidal volume for deeper penetration to lungs
  • Compatible with most MDI products
  • Attaches to MDI in seconds, and easily detaches for cleaning
  • Smaller device size ensures adequate coordination time with spraying the inhaler
  • Especially useful for children 6-12 years old, the elderly, and those who need extra coordination time
  • Suitable for all ages, Single patient use
  • Dishwasher safe, latex free and anti-static delivery
  • Made in the USA

The MicroChamber® device is made of a durable polypropylene plastic material.
MicroChamber® is Made in the USA.

Directions for Use:

Please carefully follow all of the directions provided with the product.
Click here to view the Owner's Manual for the MicroChamber®.


  • MicroChamber® is very easy to use. It attaches to a metered-dose inhaler (MDI) prescribed by your doctor. Once attached to the MDI, it is ready to be used. Before using the MicroChamber® medical device, please read and carefully follow all of the manufacturer's instructions.

  • Cleaning. With repeated use, powder will accumulate on MicroChamber's mouthpiece screen. This buildup may eventually interfere with effective use.

    • Wash MicroChamber daily (or at least weekly) by running it under warm tap water, followed by drying with a soft, lint-free cloth or leaving to dry overnight.
    • MicroChamber is also dishwasher safe (top rack).

Rated 4.61 out of 5 based on 16 reviews.

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June 14
Small enough to fit in my purse without taking up a lot of room.
July 13
The spacer for the inhaler is nothing more than a plastic tube! Should have a filter near the mouth piece to print the medicine from hitting the roof of the mouth. I have had three biopsies because of this issue and was going for q better fix! What about a little filter?
February 29
love it and highly recommend it over the likes of the Vortex electrostatic chamber. Everything in that gets stuck on sides because it is so long. This is the perfect tool for inhalation.
January 5
This inhaler is perect for me. I need a small spacer to put in my purse or pocket. This does the trick.
December 11
looks cheap at first glance, but works better and is more compact than my previous "expensive" spacer. 2 thumbs up
December 1
Simple to use, does the job and is inexpensive.
November 5
This spacer seems to work much better than the MicroSpacer.
October 12
A first time purchase for our family and the process went very well. The order was processed quickly and was on it's way to us in a short amount of time. Cost were reasonable as was the shipping.
June 13
It was exactly as advertised and just what I wanted.
Really helps get the medicine into your lungs without getting the powder too. Inhale slowly right after you spray the inhaler. I bought the last one for my friend. Takes a few times to get used to it for some people, but it really is great to actually get the medicine with out gaging and coughing it out before it can get into your lungs.
I really like the small size of this spacer. I had been carrying a larger one in my purse with my inhaler. This one is much smaller, but still has the benefits of the larger spacers. I still use the MicroChamber at home, though.
I have two of these. Perfect size. Effective without being cumbersome.
Bought this for my son to use with his inhaler at school. Its small size is easy for him to carry in his backpack. Will be ordering another one to carry in my purse.
It's small enough to fit in my purse and big enough to be functional.