When taking it out of the case, the mouthpiece tears; it's too small and not functional.

8 days delivery time to Germany is excellent.
Price, performance, and quality are excellent.
Satisfied and highly recommended!

Good.

Very fast shipping.

I am a nurse, I expected a better product, in reality it is a sheet of plastic with a valve in the center. Useful but expensive due to the quality of materials.

When taking it out of the case, the mouthpiece tears; it's too small and not functional.

8 days delivery time to Germany is excellent.
Price, performance, and quality are excellent.
Satisfied and highly recommended!

Good.

Very fast shipping.

I am a nurse, I expected a better product, in reality it is a sheet of plastic with a valve in the center. Useful but expensive due to the quality of materials.

When taking it out of the case, the mouthpiece tears; it's too small and not functional.

8 days delivery time to Germany is excellent.
Price, performance, and quality are excellent.
Satisfied and highly recommended!

Good.

Very fast shipping.

I am a nurse, I expected a better product, in reality it is a sheet of plastic with a valve in the center. Useful but expensive due to the quality of materials.

When taking it out of the case, the mouthpiece tears; it's too small and not functional.

8 days delivery time to Germany is excellent.
Price, performance, and quality are excellent.
Satisfied and highly recommended!

Good.

Very fast shipping.

I am a nurse, I expected a better product, in reality it is a sheet of plastic with a valve in the center. Useful but expensive due to the quality of materials.

When taking it out of the case, the mouthpiece tears; it's too small and not functional.

8 days delivery time to Germany is excellent.
Price, performance, and quality are excellent.
Satisfied and highly recommended!

Good.

Very fast shipping.

I am a nurse, I expected a better product, in reality it is a sheet of plastic with a valve in the center. Useful but expensive due to the quality of materials.