Common methods include hot water extraction, dry-cleaning, and vacuuming. Samples may be collected by shaking, brushing, tapping, vacuuming, swabbing and handpicking. Usually, this involves vacuuming to remove any surface dirt. In 2001, it patented the first vacuuming consumer beard trimmer, the Trim N Vac. Good hygiene and regular vacuuming may prevent infestations from happening. Frequent and thorough vacuuming is also helpful. Difficult sections are removed with soft brushes and localized vacuuming. Traditional advice recommends disposing of the bag after each vacuuming. Mechanical approaches, such as vacuuming up the insects and heat-treating or wrapping mattresses, are effective. Humphreys had apparently been vacuuming the room at the time of his death. Later, Kinsky begins composing using Shandurai, vacuuming nearby, as his muse. Neither went forward due to "money vacuuming" out of the local budget. Ben Grant, 17, was fatally shot near the left eye as he was vacuuming.