1. Copyright © 2013 by The S.E.A. Group

2. A particle filter can be fitted to the front of a gas filter. Copyright © 2013 by The S.E.A. Group Make a combination filter

3. No other combination is possible. Copyright © 2013 by The S.E.A. Group Make a combination filter

4. Press the particle filter onto the main gas filter until it pops into position. Snap on a new prefilter. Copyright © 2013 by The S.E.A. Group Make a combination filter

5. Locate the small lug on the side of the gas filter. Copyright © 2013 by The S.E.A. Group Separate a combination filter

6. Insert a coin in the space between the flange of the particle filter and the lug on the gas filter. Press down and twist the coin until the filters break apart. Copyright © 2013 by The S.E.A. Group Separate a combination filter

7. Fit a prefilter Place a pre-filter in the pre-filter holder Copyright © 2013 by The S.E.A. Group

8. Fit a prefilter Snap the pre-filter onto the main filter Copyright © 2013 by The S.E.A. Group

9. Thank you for watching Copyright © 2013 by The S.E.A. Group