Delete Rows with Multiple Criteria

Hi,

I would like to get assistance with deletion of rows with multiple criteria. I have adapted this code from Ron Debruin.
Please look at this code to see if it can be more efficient because of the amount of rows that I have, it takes so long.

[CODE][/
Sub DeleteRowsVariousCriteria()
Dim Firstrow As Long
Dim Lastrow As Long
Dim Lrow As Long
Dim CalcMode As Long
Dim ViewMode As Long

With Application
CalcMode = .Calculation
.Calculation = xlCalculationManual
.ScreenUpdating = False
End With

'We use the ActiveSheet but you can replace this with
'Sheets("MySheet")if you want
With ActiveSheet

'We select the sheet so we can change the window view
.Select

'If you are in Page Break Preview Or Page Layout view go
'back to normal view, we do this for speed
ViewMode = ActiveWindow.View
ActiveWindow.View = xlNormalView

'Turn off Page Breaks, we do this for speed
.DisplayPageBreaks = False

'Set the first and last row to loop through
Firstrow = .UsedRange.Cells(1).Row
Lastrow = .UsedRange.Rows(.UsedRange.Rows.Count).Row

'We loop from Lastrow to Firstrow (bottom to top)
For Lrow = Lastrow To Firstrow Step -1

'We check the values in the A column in this example
With .Cells(Lrow, "a")

If Not IsError(.Value) Then

If Not .Value Like "1.1*" And Not .Value Like "1.2*" And Not .Value Like "*ITEM NO:*" Then .EntireRow.Delete
'This will delete each row with the Value "ron"
'in Column A, case sensitive.

End If

End With

Next Lrow

End With

ActiveWindow.View = ViewMode
With Application
.ScreenUpdating = True
.Calculation = CalcMode
End With

End Sub

CODE]

Any help would be greatly appreciated.

Thanks for your response ImranBhatti. I wanted to include this little piece of code to an additional large amount which I use to create daily reports. I've tried custom filtering but you are limited. Plus I need to add one more criteria.

I figured another way. I used my code to copy the required criteria to an adjacent cell then deleted the blanks from that column.

Thanks for you help.