Body & Trim
  Door Mirrors
  Seat Belts
  Tailgate Struts

Brake Friction
  Brake Discs
  Brake Pads
  Brake Shoes
  Brake Drums

Clutch Friction
  Luk Clutch Kits

Cooling
  Climate Control
  Water Pumps
  Radiators
  Heater Radiators
  Intercoolers

Drive Belts
  Fan Belts

Electrical Parts
  Batteries
  Alternators
  Starter motors

Engine Parts
  Timing Belts & Kits
  Engine Valves
  Oil Pumps
  Oil Seals

Exhausts
  Timax Exhausts
  Catalytic Converters

Filters
  Engine Filters
  Pollen Filters

Flexible Mountings
  Engine Mountings

Fuel System
  Fuel Pumps

Gaskets
  Head Gaskets & Sets

Hydraulics
  Brake Hoses
  Brake & Clutch Cylinders
  Brake Calipers
  Wheel Cylinders
  Concentric Slave Cylinders

Ignition
  Spark Plugs
  Ignition Lead Sets
  Ignition Components
  Glow Plugs

Lighting
  Light Units

Lubricants & Fluids
  Oils

Steering & Suspension
  Shock Absorbers
  Coil Springs
  Lowering Kits
  Steering Racks
  Steering Rack Gaiters
  Ball Joints
  Wishbones
  Power Steering Pumps

Switches & Sensors
  Lambda Sensors
  Map Sensors
  Throttle Potentiometers
  Engine Management

Transmission
  Driveshafts
  CV Joints
  Wheel Bearing Kits
  Wheel Hubs
  CV Boots

Wipers
  Wiper Blades

This purifies the air before it is let inside the car, keeping out most of the particles in the atmosphere. Routine checks and replacement at pre-set intervals are essential in order not to affect proper air flow inside the car.

For more detailed info see climate control