Product description
The Karmaplus Acoustic Vents range comprises ‘9 x 3’ and ‘9 x 6’ acoustic
through-wall cavity liner sets and 127mm and 151mm diameter core
ventilators for background ventilation and room and appliance ventilation.

Product features
A range of six ventilation sets with areas calculated to the building
regulations Approved Document F and available in a choice of sizes and colours.

Test Information
Fully tested by the Building Research Establishment – acoustic test reports
available on request.

Customer benefits
■ Reduces noise penetration from the outside to inside and inside to outside

■ Standard sizes so no complicated installation involved.