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    How Long Will Your Canister Last?

    Sprays

    Per Canister

    Sprays (Puffs) Per Day

    1

    2

    4

    6

    8

    9

    16

    100

    100 days

    50 days

    25 days

    16 days

    12 days

    11 days

    6 days

    120

    120 days

    60 days

    30 days

    20 days

    15 days

    13 days

    7 days

    200

    200 days

    100 days

    50 days

    33 days

    25 days

    22 days

    12 days

    240

    N/A

    N/A

    60 days

    40 days

    30 days

    26 days

    15 days

    When you first start using a new inhaler, figure out how long the canister will last and mark that date on a calendar or on the canister.

    Make sure you get your refill at least one week before the date you marked.

    Remember, controller medicines are used daily. For rescue medicines, you will need to keep track of each time you use the inhaler. (For example, make a mark on the calendar for each puff and total them up, so you know how many puffs are remaining.)

    DON'T BE CAUGHT WITH AN EMPTY INHALER!