Exhibit 23.5
                         Consent of Ernst & Young LLP

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-4) of Respironics, Inc. and Subsidiaries (the
Registration Statement) for the registration of 3,032,860 shares of its common
stock and to the incorporation by reference therein of our report dated June
18, 2001, with respect to the consolidated financial statements and schedule of
Novametrix Medical Systems Inc. (Novametrix) included in its Annual Report
(Form 10-K) for the year ended April 29, 2001, filed with the Securities and
Exchange Commission and incorporated by reference in the Proxy Statement of
Novametrix that is made a part of the Registration Statement.
                                                          /s/ Ernst & Young LLP
Hartford, Connecticut
January 18, 2002