SOS PRO Concentrate

SOS PRO is the concentrated version of the SOS Bedbugs insecticide: it contains the same base of pyrethrum extract (0.25 per cent) and a plant-based synergist, to be diluted by the user in a spray bottle. A 100 mL bottle makes 5 litres of solution, enough to treat up to 100 m². It is designed for those with large areas to treat: hotels, guesthouses, letting agents, property managers, or private individuals facing an infestation affecting the entire property.

Shake the bottle, then pour the 100 mL into 5 litres of water, directly into the spray tank, and mix. For smaller volumes, keep the same ratio: 20 mL of concentrate per litre of water. Stick to this dosage: a more concentrated solution is not more effective, and a solution that is too diluted is less effective.

A 5-litre pressure sprayer, of the type used in the garden, is ideal. Use a clean one that has never contained weedkiller or any other product, and keep it for this purpose only. Set the nozzle to a fine spray to reach crevices and seams effectively. Rinse it with clean water after each treatment.

One bottle of concentrate treats up to 100 m² of surfaces: bedding, bed bases, skirting boards, furniture and hiding places – not just the floor. The full treatment involves 2 to 3 passes. For a large property or a multi-bedroom property, allow one bottle per pass. For a studio flat or a one-bedroom flat, one bottle often covers several treatments.

Spray from a distance of 10–15 cm, directly onto the bed bugs, their nests and hiding places:

• mattress seams, bed base, headboard;
• skirting boards, cracks in the wooden floor;
• the back and inside of chests of drawers, dark corners.

It is best to treat with the shutters closed or in dim light: light breaks down the product. Allow it to dry thoroughly before using the room again. First carry out a test on a small, inconspicuous area of fabrics and delicate woodwork.

Allow for 2 to 3 bed bug treatments, spaced 7 to 10 days apart. The first treatment eliminates any bed bugs present within a few minutes and remains active for up to 12 days. Subsequent treatments target those that were hidden or have just hatched. Do not stop after the first treatment, even if you can no longer see any bed bugs: this is the most common cause of re-infestation.

As a general rule: ‘Prepare only the amount needed for that day’s treatment. Store the bottle of concentrate unopened, away from light and heat.’ Then observe the use-by date shown on the packaging.

Wear gloves whilst diluting and applying the product. Treat the area when children and pets are not present. Ventilate the room during and after treatment, and wait until the surfaces are dry before re-entering the room. Read the label before each use.

It all depends on the surface area to be treated:

• SOS XXL (500 mL) is ready to use and covers approximately 10 m², costing around €3.50 per m². It’s the simplest option for a bedroom, requiring no equipment.
• SOS PRO works out at around €1.15 per m² (€114.90 for 100 m²), but requires a spray bottle.

If you’re treating more than one or two rooms, or if you need to repeat the treatment in several properties, the concentrate is significantly more economical.

Yes, this is one of the most common uses of SOS PRO. You can combine the product with essential mechanical control measures against bed bugs:

1. Remove and wash bed linen at 60 °C.
2. Vacuum the mattress, bed base and skirting boards.
3. Treat the bedroom and any furniture near the bed.
4. Air the room and leave it to dry before the next guests arrive.

In the event of a confirmed infestation, carry out the treatment protocol two or three times before putting the property back on the market. Between guests, diatomaceous earth, applied in strategic locations, is ideal for prevention.