最小能過濾小至0.0024微米(2.4奈米)的極微小細懸浮微粒，包含更多肉眼看不見的細菌、病毒和黴菌等，濾淨高達300種以上的污染原。
Severity: Notice
Message: Undefined index: uid
Filename: modal/messenger_auth_modal.php
Line Number: 33
Backtrace:
File: /var/www/public/application/views/modal/messenger_auth_modal.php
Line: 33
Function: _error_handler
File: /var/www/public/application/views/inc/footer_view.php
Line: 8
Function: view
File: /var/www/public/application/core/Ext_Controller.php
Line: 131
Function: view
File: /var/www/public/application/controllers/Device.php
Line: 242
Function: loadView
File: /var/www/public/index.php
Line: 315
Function: require_once
