Internal and external grilles
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100mm Round Ventilation Grille Hood Vent Grill,304 Stainless Steel Round Hood with/Mesh
1PC Stainless Steel Round Air Vent Grille with Insect-Proof Mouth and Slats, Ventilation Grille(150mm) for Exterior Wall, Ideal for Bathroom, Air Conditioners, Kitchen
Best sellersVents Ventilation Grate Covering Return Flap Diameter 100 mm ABS White Outer Cover
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Solar Powered Ventilation Extractor Fan (Ventilator Exhaust Roof Vent Caravan Attic Shed Greenhouse)
100mm Duct Wall Ventilation Grille Black Cover Insect Mesh
120x440mm Internal Door Plastic Ventilation Grille Air Vent Collar Oak Colour
Vents Ventilation Grate Covering Return Flap Diameter 150 mm ABS White Outer Cover
424x91mm White Internal Door Ventilation Grille Air Vent
Vents Ventilation Grate Covering Return Flap Diameter 125 mm ABS White Outer Cover
2 Pieces Outdoor Ventilation Grille, Aluminum Ventilation Grille Outdoor Ventilation Grille Adjustable Ventilation Grille, Black
100-150mm Adjustable Air Ventilation Grille Cover Insect Net
150x150mm Wall Ventilation Grille Cover With Net and Shutter
Ceiling Ventilation Grille Duct Cover with Anti Insects Net 100mm Diameter
125mm Grey Vents Ventilation Grate Covering Return Flap ABS Outer Cover
Pieces Aluminum Air Vent Grille Rectangular Air Vent Grille Alloy Air Vent Grille Exterior Air Vent Grille for Ventilation Black 250 X 80mm
Stainless Steel Round Ventilation Grille 100mm Metal Ventilation Grille Weather Protection Grille with Insect Proof Ventilation Grille Ventilation Grille Slats
60mm Diameter Hole White Round Door Air Vent Grille Woodwork Furniture
Ahlsen Ventilation grille 150 mm, stainless steel backstop with movable slats, automatic closing, weather-resistant hood grille/square size 184 x 184 mm / stainless steel ventilation
120x440mm Internal Door Plastic Ventilation Grille Air Vent Collar White Colour
150mm diameter round air vent with top quality ABS vent cover with insect mesh for 6 inch ducts.
Mini Circle Collar Air Vent Grille Door Ventilation Cover White Color 4pcs
Non Return Valve for Ventilation Extractor Fan Backdraft Wind Shutter 100mm
Wall Ventilation Grille Duct Cover with Net Pull Cord and Shutter 200x200mm
Wall Ventilation Grille Duct Cover with Net Pull Cord and Shutter 130x130mm
8 Inch Round ABS Air Grille with White Soffit Vent
70mm Diameter Hole White Round Door Air Vent Grille Woodwork Furniture
6 Inch Air Vent, Round Soffit Vent and Shutter Outlet Grille Cover with Fly Screen Mesh for Walls and Ceilings, Kitchen, Bathroom, Cabinet,
AlwaysH Ventilation Grille - Square Stainless Steel Outdoor Ventilation Grille with Movable Slats Suitable for Clothes Dryer Air Conditioner Bathroom Kitchen
Round duct connector with valve Circular-V PVC 100
SHINING HOUSE Decorative wall hole cover, round plug for air vent (70 mm)
Round Ventilation Grille, Adjustable Air Vent Stainless Steel Air Vent Air Inlet and Exhaust 125mm
AlwaysH Round Ventilation Grille, Adjustable Ventilation Opening Stainless Steel Ventilation Vent Air Inlet and Exhaust
Air Vent Grille, Rectangular Air Vent Grille Ventilation Grille Rectangular Air Vent Grille Aluminum for Ventilation (30 cm) 2 Pieces, White
Air Vent Duct Pipe Reducer Ventilation Reduction Downpipe
Solar Powered Ventilator Extractor Fan (Exhaust Roof Vent Caravan Ventilation Greenhouse Camper RV)
Nicoll GATM100 White round ventilation grille with D100 flyscreen, for PVC pipes, tubes and sheaths
Ventilation Grille 120 mm High Quality Stainless Steel Ventilation Grille Exterior Ventilation Grille With Mosquito Net Protects the Facade and Prevents the Entry of Cold Air/Stainless Steel Grille
60mm Diameter Hole Brown Round Door Air Vent Grille Woodwork Furniture
Air vent (Ø 100mm) - circular air vent, stainless steel perforated air vent, air vent, circular exhaust air vent, VMC air vent
Quiet Air Extractor 100mm Tubular Fan, Pipe Fan with Check Valve, Extractor Fan Air Fan for Bathroom Kitchen Greenhouse Garage
1 Pcs 100mm Air Vent Grille - Wall Mounted Air Hood Stainless Steel Air Vent with Anti Insect Mesh for Extractor Hood Air Conditioning Unit Against Weather
304 stainless steel ventilation hood, 120 mm, rain and windproof hood, with mosquito net, suitable for kitchen and bathroom, protects the outside wall (glossy surface)
Air Grille Classic 100
AlwaysH 12 pieces 53mm Stainless Steel Ventilation Grille Round Mesh Breathing - for Kitchen Furniture Stainless Steel Air Vent - for Cupboard Cupboard Exhaust Air Ventilation Exhaust Grille
SHINING HOUSE Pieces Ventilation Grille, Aluminum Alloy Air Vent Grille, Black Rectangular Air Vent Grille can be used for Wardrobes, Shoe Cabinets, Gates
AlwaysH Qrity Stainless Steel Round Exhaust Pipe Ventilation Grille 80mm, Air Outlet Hood, Round Air Exhaust Grille, Smoke Extraction Hood with Mosquito Net
Vent Grille 120mm Circular Stainless Steel Ventilation Grille Vent Cap with Mesh Lid for Kitchen Cooker Hood
Ventilation grille, outlet ventilation grille made of stainless steel 304 (ø150 mm)
Round Plastic Adjustable Ventilation Grill - Circular Air Vent Grille for Bathroom, Kitchen, Office Can Be Used as a Home Decoration Role (100mm Disc)
White Plastic 78-98mm Air Vent Custom Diameter Ventilation Ending Cap Grille
430x76mm White Internal Door Ventilation Grille Air Vent
Duct adaptors for 150mm to 100mm ventilation ducts, extractor fan adaptors, duct reducers
AlwaysH 150mm Stainless Steel Ventilation Grille, Round Outdoor Fireplace Hood Grille, U Ventilation Grille with Insect Net, Ventilation Grille with 45° Slats, for Kitchen
Ahlsen Ventilation grille VMCPromotion Ventilation grille - Round ventilation grille, ventilation grille hole made of stainless steel, ventilation with mesh, round exhaust pipe ventilation grille, Ø 1
Ventilation Grille - Round Ventilation Grille, Stainless Steel Ventilation Grille Hole, Ventilation with Net, Round Exhaust Pipe Ventilation Grille, ø 100 mm
Stainless Steel Round Air Vent Grille for Outdoor Wall Vent Grille Flap Cover Vent Grille 80mm
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Internal and external grilles: make the right choice
VMC systems are installed to optimize the air renewal in the home while avoiding heat loss. Ventilation grilles must be put in place to bring in fresh air to replace the stale air evacuated by the extraction vents.
First of all, some information should be known regarding Controlled Mechanical Ventilations:
- their installation has been mandatory since March 24, 1982;
- the minimum volume of air to be extracted (in m³/h) in each room is defined by the decree of October 28, 1983;
- these devices are useful for renewing the air and reducing humidity levels in order to prevent the proliferation of fungi.
The air intake grilles have some characteristics to know:
- they are essential in the case of installing a single-flow VMC system;
- they allow fresh air from outside to enter the house;
- the self-adjusting models adjust the airflow according to pressure;
- the hygro-adjustable versions adjust the airflow depending on the air humidity level in the room.
Some options can assist in choosing the device to install.
- Some models are equipped with an external deflector to limit water infiltrations. This type of equipment is recommended in rainy regions.
- The available air entries are mostly equipped with a system preventing insects from entering the rooms. This option is desirable for the comfort of the occupants.
- Some references are equipped with a flap or a shutter.
- Others offer the possibility of installing an acoustic hood. This option is appreciated as it allows reducing noises coming from outside.
- Different colors are offered to suit all tastes.
Some rules must be remembered for the installation of ventilation grilles:
- the incoming air flow must be greater than or equal to the outgoing air flow (through the extraction vents);
- they are often installed on window joinery;
- it is also possible to install them on roller shutter boxes;
- they are to be installed in the living room, dining room, and bedrooms;
- they must not be installed in rooms equipped with extraction vents such as the kitchen, the bathroom, or toilets.
The choice of air intakes depends on the desired flow rate (between 15 and 30 m³/h) and the space available for their installation. However, the aesthetic criterion should not be neglected.
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