What places in a house are best to perform a surface test on?

The D4D PenTest kit works best when the sample swab is taken from the largest surface area available collecting as much sample residue as possible.

Recommended areas to test are:

  • Kitchen and bathroom extractor fans
  • Ceiling fans
  • Air conditioning vents or ducts
  • Walls, especially if stained
  • Window frames
  • Tops of door frames
  • Curtain and blind rails
  • Tops of kitchen and bathroom cabinets
  • Surfaces that appear dirty, light switches, sinks and tubs
  • Carpets, especially where there are visible stains
  • Workshops and garages

This list is not conclusive as each situation is different but these are the most common areas of contamination.

It is not uncommon for a property to show levels ranging from non-detectable to well over Government Health Department recommended limits when all rooms are tested.

Where feasible, testing each room separately is the best way to evaluate a property’s level of contamination.

For full instructions on how to conduct a surface drug test, click here