Product Manual

Personal Ambulatory Oxygen System Provider Technical Manual

4. Reconnect silicone tubes to the lter. Verify ow direction is correct. Ensure that the feed tubes are not blocked,

crimped or kinked upon completion of the installation or the unit will alarm for no/low oxygen ow after the

warm-up cycle is complete. Route tubing as shown in Figure 22 below. Place HEPA lter into slot in case.

Figure 21: Installing the HEPA Filter.

5. Re-install cable ties on silicone tubes.

NOTE:

Route tubing as shown in Figure 22. Install cable ties loosely as shown.

CAUTION

Once the silicone tubes are disconnected from the HEPA lter the

oxygen circuit is exposed to the atmosphere. Replace and reconnect

the lter immediately in order to minimize exposure to debris and

humidity which may result in ATF Module damage.

Internal Filters (Newer E3s)

HEPA Filter replacement SN: 11F06100456 and above:

1. Cut cable tie and Disconnect the tubing at the top of the lter carriage.

Figure 22: Tubing on Filter Carriage.