CH, TR and MAK oxygen therapy humidifiers

The bubbling humidifiers for oxygen therapy series CH/200, TR/200, MAK/300 and MAK/500 are devices used to increase the relative humidity in the treatments with medical oxygen, both in hospital and at home.

Humidifiers for oxygen series CH/200, TR/200, MAK/300 and MAK/500 are manufactured with both the transparent jar and the cover with bubbler in polycarbonate. All fitments are in brass and they can be sterilized in autoclave at 121 °C for 15 min. The model TR/200 can also be realized in PSU where higher value of sterilization temperature is requested (134 °C - 18 min.).

The model TR/200, MAK/300 and MAK/500 can be equipped with an optional relief valve to avoid the possible over pressure inside the humidifier. They guarantee, in conjunction with flowmeters EasyFLOW®, Rs, Qmed®, EASYMED® and EasyMED®PLUS, an easy use and great versatility, combined with an extreme economy. They are supplied in different options of capacity (200 ml, 300 ml and 500 ml) and with optional threads in the input connections, this to satisfy the most varied requirements and needs.

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Tech Info






Inner volume

210 ml

120 ml

285 ml

355 ml

Sizes (LxWxH)

55x67x200 mm

60x75x190 mm

70x81x175 mm

70x81x207 mm


0.11 Kg

0.13 Kg

0.15 Kg

0.16 Kg

Max. applicable pressure value

500 kPa

Max. applicable flow value

10 L/min.

Inlet connection

1/4” ISO 3253 F. • 3/8” ISO 3253 F. • M 12x1.25 F.
• 9/16” UNF EN 13544-2 F.

Outlet connection

hose connector Ø 6÷9 mm

Relief valve (optional)

preset at 80 kPa ±10% with a flow equal to 10 L/min.

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