The one with Priority Pass access?
http://www.prioritypass.com/lounges/lounge-details.cfm
Lounge Information
Airport: beijing - Capital International (PEK), Terminal 3E International
Lounge: AIR CHINA FIRST CLASS LOUNGE
Location: Airside - proceed past the Security Check counters. The Lounge is situated approximately 100 meters away on the left hand side.
Opening Hours: 06:00 - 22:00 daily.
Conditions: Access may be restricted due to space constraints - Children under 2 years are not admitted - Dress code applicable - Separate smoking room available.
Lounge Facilities: