Fresh air device and fresh air device assembly

Abstract

The present invention relates to a fresh air product, in particular to a fresh air device and a fresh air device assembly. The fresh air device includes a casing and a cartridge arranged in the casing, and further includes: an air inlet valve, arranged at one end of the casing; an air outlet valve detachably arranged at the other end of the casing; and a mouthpiece arranged on the air outlet valve. According to the fresh air device provided by the present invention, the air inlet valve and the air outlet valve are arranged at two ends to seal the casing and control the overall gas quantity, such that liquid in the cartridge may be effectively prevented from being volatilized and escaping, thus prolonging the service life of the cartridge; moreover, the overall gas quantity may be easily controlled as required, and the fresh air device is reusable and more environmentally friendly.

Dependencies are inferred from the claim text.