Archives of Respiratory Medicine (ARM) focuses on papers that cover and come under broad topics and is not limited to a particular aspect:

Respiratory system, medicine, and diseases
Prevention and diagnosis of respiratory and related disorders
Nasal, middle, and upper airway problems
Asthma and other small airway conditions
COPD
Sleep-disordered breathing
Interstitial lung disease (ILD) and systemic diseases affecting the lungs
Allergic lung and bronchial disorders
Infections
Critical care and ventilatory failure
Pulmonary vascular diseases
Lung cancer and mesothelioma
Genetic and developmental lung disorders
Pediatric lung diseases
Technologies and machines for breath research
Cellular respiration
Resultant blood and biomarker linked to the inhalation pathway
Inhalation toxicology and pharmacology
Public health–stop smoking services and tobacco and nicotine addiction policy; epidemiology and prevention
Airborne Hazards and more