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    M Series Replacement Humidifier Chamber

    Product Images

    M Series Replacement Humidifier Chamber

    Manufactured by Philips Respironics.


    Manufactured by Philips Respironics.

    You must select a Type for this product. Please use the drop down menu next to the Customize & Buy button
    Universal Chamber Kit - #1003756-1003757-1003758:

    In Stock

    Available to Ship: Today

    Customize & Buy

    Product Features

    Which M Series Chamber Should I Order?

    Here are two documents to help you identify which chamber to order.

    If there is any doubt about which one to choose, then order the Universal Kit. The Universal Kit comes with a Universal Base, an R2 Lid, and an R3 Lid and will work in any M Series Humidifier.

    Contact our customer service department for further assistance. 800-356-5221.

    The is the replacement water chamber for the Respironics M Series Humidifiers.

    Return On Warranty Issues Only


    This Product Includes...

    • Chamber

    Product Specifications

    Water Capacity: 325ml or 1 1/3 cup

    Warranty Length: 90 Days always offers these services:

    • 8 am to 10 pm CST Toll Free Phone and Email Support
    • 24 hour access to our Support Forum
    • Learning Center for information on sleep apnea and cpap equipment
    • Consumer Purchasing Trends Reports
    • Warranty Services for all items purchased through
    • Insurance Compliant Invoices
    • Free Prescription Request System

    Manufacturer Note

    • Philips Respironics products are for sale only to patients within the U.S. and not to other third parties or businesses.
    • All services provided by, including advertisement, ordering, sale, delivery, instruction, and setup of the products are performed solely by and independently of the manufacturer.

    Important Tips

    PLEASE NOTE: This is the replacement water chamber only. The heated humidifier is not included with this purchase.

    Maximum Fill Level Tips

    • Do not fill the water tank above the maximum fill line. Damage to the humidifier or therapy device may occur. If the water tank is overfilled, water may leak out of the tank inlet (located on the back of the tank) when installing the tank lid.
    • Use only room temperature distilled water in the tank. Do not put any chemicals or additives into the water. Possible airway irritation or damage to the water tank may result.
    • Remove the tank, empty all water, and replace the empty tank before transporting the humidifier base.
    • Do not attempt to fill the water tank while it is inside the humidifier.
    • To avoid spilling, do not disconnect the humidifier from the therapy device with water in the tank. Remove the water tank from the humidifier before disconnecting the therapy device.
    • Do not turn the humidifier on without the water tank installed. The Humidifier number setting must remain on 0 if there is no water in the water tank.
    • The humidifier door must be set in the open position before removing the water tank. Do not remove the water tank without making sure that the humidifier door locks into the open position.
    • Do not move the humidifier while the water tank has water in it.

    Manufacturer Warranty

    This product comes with a 90 Days Manufacturer Warranty. will work with the manufacturer on your behalf if the product needs repairs. Please follow these steps:

    • Contact us at or 1-800-356-5221 to receive an RMA (Return Merchandise Authorization) Number before returning the equipment
    • Include a note with the product describing the issue you are experiencing, along with your full contact information to include a return shipping address and the RMA number provided to you
    • Ship only the defective items to at 10101 Stafford Centre Drive, Stafford, TX 77477
    • Do not return accessory items such as the carry bag, hose or power cords
    • Loaner Humidifiers are available for rental during the warranty process
    • Email updates will be sent to keep you informed as the product moves through the warranty process
    • will contact the manufacturer on your behalf and handle all shipping between us and the manufacturer
    • The repaired or replaced unit will be returned to you. Shipping charges may apply.

    Please note: The manufacturer warranty is voided by water damage or misuse of the machine.