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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: Tob Control. 2019 Jul 20;29(Suppl 2):s123–s130. doi: 10.1136/tobaccocontrol-2019-054959

Table 4.

Reported cleaning practices of WP hose and WP stem

n (%) Quotes
WP hose. How often WP hose is cleaned. Do you clean the WP hose that you use at home after every WPT smoking session? If No, how often do you clean the WP hose that you use at home? (n=19)
 At least once a week 3 (15.8)  Twice a week (1). Once a week (2).
 More than once a week 5 (26.3)  Bi-monthly (1). I clean it every month (1). Once every month (1). Every couple of months (2).
 Other 11 (57.9)  Once every other hookah head (2). Every couple of times (1). Every third session (1). Every six times (1). Every few sessions (2). I cleaned it only once (1). Rarely (3).
WP hose. How WP hose is cleaned. What do you use to clean your WP hose at home? (n=33)
 Water only 13 (39.4)  Just water (7). Water no soap (1). Hot water (3). Water, air (1). Just run water and blow out (1).
 Soap and water 11 (33.3)  Soap and water (8). Water and rinse with soap (1). Water, dawn (1). Soap water (1).
 Soap only 2 (6.1)  Soap (2).
 Other 7 (21.2)  Blow air through it (1). Water and running alcohol (2). Water, kitchen salt (1). Bleach, water and soap (1). Water, alcohol and salt (1). Water, lemon juice and salt (1).
WP hose. Colour of water when cleaning it. When you clean your WP hose at home, what is the colour of the water that comes out of the hose? (n=34)
 Brown 14 (41.2)  Light brown (4). brown (6). Brownish/darkish colour (2). Brownish red (1). Orange/brown (1).
 Clear 8 (23.5)  Clear (5). Normal (2). I think clear (1).
 Black 6 (17.6)  Black (4). Black from charcoal (1). Foggy (1).
 Yellow 6 (17.6)  Pale yellow (1). Yellow (5).
WP stem. How often WP stem is cleaned. Do you clean the WP stem that you use at home after every WPT smoking session? If No, describe how often do you clean the WP stem that you use at home? (n=13)
 At least once a week 1 (7.7)  Weekly (1).
 More than once a week 3 (23.1)  Every couple of weeks (1). Once a month (1). Every couple of months (1).
 Other 9 (69.2)  Every other time (1). Every two or three times I use (2). Every three hookah sessions (1). Every two heads (1). Every four or five sessions (1). Every five to six uses (1). Once or twice (1). Rarely (1).
WP stem. How WP stem is cleaned. What do you use to clean your WP stem at home? (n=34)
 Water only 10 (29.4)  Hot water (1). Water (6). Warm water (1). Just water (1). Run water through it (1).
 Water and soap 9 (26.5)  Water and soap (4). Water/soap (3). Water, dawn (1). Run water and soap for the base (1).
 Soap only 2 (5.9)  Soap (2).
 Other 13 (38.2)  Water and alcohol (4). Water, soap and alcohol (2). Water, soap and bleach (1). Water, salt (1). Water, salt and alcohol (1). Hot water, lemon juice, salt and dish soap (1). Brush and water (3).
WP stem. Colour of water when cleaning it. When you clean your WP stem at home, what is the colour of the water that comes out of the stem? (n=35)
 Clear 11 (31.4)  Clear (10). I think clear (1).
 Brown 10 (28.6)  Light brown (1). Brown (7). Orange/brown (1). Brownish/reddish (1).
 Yellow 8 (22.9)  Yellow (4). Yellowish (3). Yellowish with black specks (1).
 Black 6 (17.1)  Black (3). Dark (1). Black/dark colours (1). Clear with ashes (1).

Due to missing values, some variables do not total the sample size 50. Participants provided ≥1 response per question.

WP, waterpipe; WPT, waterpipe tobacco.